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. 2020 Mar 19;9(3):358. doi: 10.3390/foods9030358

Figure 2.

Figure 2

Chromatograms of lingonberry L1 extract and flavonoid standards (5 μg/mL) at 280 nm. (a) Flavonoids quantified using authentic standards. Peak numbers (1–18) refer to compounds listed in Table 1. (b) Flavonoids tentatively identified and quantified. A, B-type procyanidin; B, A-type procyanidin; C, quercetin-3-O-xyloside; D, quercetin-3-O-arabinoside; E, quercetin-3-O-arabino-furanoside; F, quercetin-3-O-(4’’-HMG)-rhamnoside; G, kaempferol-(HMG)-rhamnoside. The concentration of flavonoids in lingonberry extract ranged from 1.5 to 101.9 μg/mL.